Non-ATP/catalytic site p38 mitogen activated protein kinase inhibitors

Abstract

Compounds that inhibit p38α MAPK protein, and methods of using the same, are provided for treating or preventing diseases such as cancer or inflammatory diseases.

The invention claimed is: 
     
       1. A compound of the formula: 
       
         
           
           
               
               
           
         
       
       or a pharmaceutically acceptable salt thereof, wherein,
 L 1  is selected from —CH 2 —, —C(CH 3 ) 2 —, and —C(CH 2 CH 2 )—; 
 L 2  is selected from —NH—SO 2 —, —NHCH 2 —, —CH 2 NH—, —NHCO—, —CONH—, and —SO 2 NH—; and 
 each of R 1a  and R 2a  is independently selected from hydrogen, C 1-10  alkyl, and C 1-10  alkyl substituted by one or more of substituents which are independently hydroxy, halo, cyano, trifluoromethyl, trifluoromethoxy, nitro, trimethylsilanyl, —OR a , —SR a , —S(O) t R a  (wherein t is 1 or 2), —OC(O)—R a , —N(R a ) 2 , —C(O)R a , —C(O)OR a , —OC(O)N(R a ) 2 , —C(O)N(R a ) 2 , —N(R a )C(O)OR a , —N(R a )C(O)R a , —N(R a )C(O)N(R a ) 2 , —N(R a )C(NR a )N(R a ) 2 , —N(R a )S(O) t R a  (wherein t is 1 or 2), —S(O) t R a  (wherein t is 1 or 2), —S(O) t OR a  (wherein t is 1 or 2), —S(O) t N(R a ) 2  (wherein t is 1 or 2), or —PO(OR a ) 2  wherein each R a  is independently hydrogen and C 1-3  alkyl. 
 
     
     
       2. The compound of  claim 1 , wherein L 1  is —CH 2 —. 
     
     
       3. The compound of  claim 1 , wherein L 2  is —NH—SO 2 —. 
     
     
       4. The compound of  claim 1 , wherein L 2  is —NHCH 2 —. 
     
     
       5. The compound of  claim 1 , wherein L 2  is —CH 2 NH—. 
     
     
       6. The compound of  claim 1 , wherein L 2  is —NHCO—. 
     
     
       7. The compound of  claim 1 , wherein L 2  is —CONH—. 
     
     
       8. The compound of  claim 1 , wherein L 2  is —SO 2 —NH—. 
     
     
       9. The compound of  claim 1 , wherein each of R 1a  and R 2a  is independently selected from hydrogen and C 1-3  alkyl. 
     
     
       10. The compound of  claim 1 , wherein each of R 1a  and R 2a  is independently C 1-3  alkyl. 
     
     
       11. A pharmaceutical composition comprising the compound of  claim 1  or a pharmaceutically acceptable salt thereof. 
     
     
       12. The pharmaceutical composition of  claim 11 , wherein the pharmaceutical composition is an oral pharmaceutical composition. 
     
     
       13. The pharmaceutical composition of  claim 11 , wherein the pharmaceutical composition is an oral dosage form. 
     
     
       14. A method of treating an inflammatory disease in a patient comprising administering to a patient in need thereof a therapeutically effective amount of the compound of  claim 1  or a pharmaceutically acceptable salt thereof, wherein the inflammatory disease is selected from rheumatoid arthritis, a cardiovascular disease, multiple sclerosis, inflammatory bowel disease, chronic obstructive pulmonary disease (COPD), asthma, acute respiratory distress syndrome (ARDS), and acute lung injury (ALI). 
     
     
       15. The method of  claim 14 , wherein the disease is a respiratory disease. 
     
     
       16. The method of  claim 14 , wherein administering comprises orally administering. 
     
     
       17. The method of  claim 14 , wherein administering comprises administering an oral dosage form comprising the compound. 
     
     
       18. The method of  claim 14 , wherein administering comprises administering from 0.1 mg/kg to 200 mg/kg of the compound.